baber/WOPTO huggingface dataset:
Patent CN-1243834-A (CN)
Title: 薯蓣皂素的生产工艺
Inventor: LIU XIKUI
IPC: C07H15/24
Filed: 1999-06-27
Abstract: 提供一种薯蓣皂素生产工艺,以薯蓣类植物为原料,用HCl水解,水解物用水洗至中性,残渣烘干制得水解干燥物,在水解干燥物中均匀加入其重量1—5%的活性炭和石灰,用汽油加热连续提取8小时,汽油提取液浓缩,结晶,过滤,干燥得薯蓣皂素。该工艺可以改善薯蓣皂素的品质,提高薯蓣皂素的熔点,减少薯蓣皂素中的杂质含量,提高薯蓣皂素的产率。
Patent CN-1247133-A (CN)
Title: 径向轮胎的钢制帘线
Inventor: CHOECHI HAN
IPC: B60C9/00
Filed: 1999-07-27
Abstract: 用于径向轮胎的一钢制帘线,具有一“2+5”构造,该构造是以具有相同的扭绞螺距和相同的扭绞方向这样的方式扭绞一芯线和一股线而形成,从而用于扭绞过程的处理步骤的数量从2降低到1,由此降低制造成本同时获得生产率的改善。
Patent CN-1308592-A (CN)
Title: 在玻璃板上涂覆有机涂料的方法
Inventor: BOAZ PREMAKARAN TUCKER
IPC: C03C17/42
Filed: 1999-07-06
Abstract: 一种将有机涂料层粘结在玻璃板表面上的方法,以及由此制备的制品。该方法包括将一层水基硅酸盐涂料涂覆在玻璃板的外表面,加热固化该涂料,将玻璃板成型,用一层硅烷材料敏化该水基涂料,将一层有机涂料涂覆在敏化的水基硅酸盐涂料层上,以及固化该有机涂料使有机涂料粘结在玻璃板表面。
Patent CR-20110259-A (CR)
Title: Composición para el cuidado personal conteniendo un volátil y un alcohol de terpeno
Inventor: SEIDLING JEFFERY RICHARD
IPC: A61K8/34
Filed: 2011-05-16
Abstract: La presente descripción se refiere generalmente a una composición para el cuidado personal que contiene un portador, una fase de aceite teniendo por lo menos un componente de alcohol de terpeno, y por lo menos un compuesto parcialmente fluorinado y un estabilizador.
Patent CR-20140234-A (CR)
Title: Carenado de carro inferior para remolques
Inventor: JOHNSON JAMES MICHAEL
IPC: B62D35/02
Filed: 2014-05-20
Abstract: UN SISTEMA Y UN MÉTODO PARA CARANADOS AERODINÁMICOS QUE INCLUYEN UN CARENADO DE CARRO INFERIOR.-
Patent CR-20230306-A (CR)
Title: Novel compounds as androgen receptor and phosphodiesterase dual inhibitor
Inventor: KIM JEONG-AH
IPC: A61K31/53
Filed: 2021-12-10
Abstract: The present disclosure provides androgen receptor (AR) and phosphodiesterase 5 (PDE-5) inhibitor compounds and compositions including said compounds. The compounds can provide dual functionality for inhibiting AR and inhibiting PDE-5. The present disclosure also provides methods of using said compounds and compositions for inhibiting AR and PDE-5 in a biological system or sample. Also provided are methods of preparing said compounds and compositions, and synthetic precursors of said compounds.
Patent EC-SP055628-A (EC)
Title: Formulaciones parenterales que contienen un hidroxiester de rapamicina
Inventor: RUBINO JOSEPH T
IPC: A61K31/4745
Filed: 2005-02-24
Abstract: La presente invención proporciona formulaciones parenterales de 42-éster de rapamicina con ácido propiónico 3-hidroxi-2(hidroximetil)-2-metil (CCI-779).
Patent EC-SP055959-A (EC)
Title: Tratamiento de enfermedades bacterianas de los organos respiratorios
Inventor: ENDERMANN RAINER
IPC: A61K9/00
Filed: 2005-08-10
Abstract: La invención se refiere a composiciones de derivados de ácido quinoloncarboxílico inhalables para el combate local de enfermedades de los órganos respiratorios, en especial de enfermedades pulmonares.
Patent EC-SP109892-A (EC)
Title: Máquina hidráulica que incluye medios de inyección de un flujo extraído de un flujo principal
Inventor: MAZZOUJI FARID
IPC: F03B1/00
Filed: 2010-01-22
Abstract: Esta máquina atravesada por un flujo (E) principal de agua presenta por lo menos un perfil de alabes (1) de una turbina, presenta una extremidad superior (8) y una extremidad inferior (10), cerca de la cual se forma por lo menos una zona turbulenta o una zona de presión reducida o una zona de cavitación (14), la máquina presenta medios de inyección de un flujo extraído (E1, E2) del flujo principal en la zona (14). Los medios de inyección presentan un conducto (16) que extrae el flujo (E1, E2) del flujo principal (E) y lo hace desembocar en la extremidad inferior (10) esencialmente según la dirección del flujo principal (E).
Patent FI-20010212-A (FI)
Inventor: SYRJAERINNE JARI
IPC: G01S5/00
Filed: 2001-02-05
Abstract: The invention relates to a method for defining the error of reference time (15) of a receiver in positioning means (S, MS). In the method a code-modulated signal transmitted by satellites (SV1-SV4) is received, which signal is produced by means of a code individual for each satellite (SV1-SV4) and the code-modulated signal is modulated at least with binary modulation information In the method, positioning is conducted to define the error of the reference time, and an error value (SSE) is calculated on the basis of the defined location. Furthermore, the minimum of the error value is searched by defining the location of the receiver (MS) by means of at least two different locations of the satellites corresponding to the time of transmission of the signal and by calculating an error value (SSE) for said at least two locations of the receiver (MS). The error of the reference time is defined on the basis of the searched minimum of the error value. Furthermore, in the receiver the moment of bit change in the modulation information is defined, wherein said moment of bit change is used for specifying the error of the reference time. <IMAGE>
Patent FR-1603545-A (FR)
Title: Hydrophobic fuel cell electrode
IPC: H01M4/86
Filed: 1968-12-09
Granted: 1971-05-03
Abstract: The addition of 10-15% of hydrophobic material such as PTFE to the porous layer containing the catalyst on a fuel cell electrode prevents the penetration of the electrode by the electrolyte. This results in a cell characteristic in which the current density is relatively independent of gas pressure difference across the electrode. Thus the pressure of gas supplied may be reduced to just above atmospheric.
Patent GB-1051958-A (GB)
IPC: H01R4/22
Abstract: 1,051,958. Wire connector. BUCHANAN ELECTRICAL PRODUCTS CORPORATION. April 30, 1965 [May 18, 1964; March 12, 1965], No. 18384/65. Heading H2E. In a wire connector of the type having a coiled spring 40 secured to an insulating housing 10 the internal radius of the coiled spring decreases between the ends of the spring at at least two different rates along the axial length of the spring. In the form shown, the radius of the coils 40a-40c decreases at a first rate, the radius of the coils 40d-40h decreases at a second, lower rate and the radius of the remainder of the coils 40h- 40n is constant. This enables the connector to be used for bundles of wires of different diameters (Figs. 5-7, not shown). The spring 44, which may be of polygonal cross-section, has a sharp internal edge 44 and is secured in the housing 10 by the ends 52 and 56 of the spring-abutting surfaces 54 and 58 of the housing, and by cooperation with a groove 50 in the housing. The housing may have a pair of fins on the cylindrical wall of the tapered end portion 24 (Fig. 10, not shown), to assist in twisting the housing on to the wires. Alternatively (Figs. 12 and 13. not shown), two wing portions 43 may be lifted out of the cylindrical wall of the end portion to increase leverage.
Patent GB-1053363-A (GB)
IPC: B65D83/10
Abstract: 1,053,363. Razor blade dispenser. EVERSHARP Inc. Aug. 23, 1963, No. 33587/63. Heading B8P. A dispenser for double-edged centrally slotted razor blades comprises a plastics body 26 having a cross-wall 31 between side flanges 30, Fig. 1 (not shown), a stack 41 of new blades resting on the wall and a sheet-metal cover 27 lying on top of the blades, integral spring fingers 58 at one end of the cover engaging beneath the wall. The plastics body 26 is formed with a springy guide tongue 38 which passes through the central slots in the blades 41. A finger hole 52 in the cover 27 allows access to the top blade of the stack 41, so that it can be pushed forward through a slot 56 in the front edge of the cover. As the top blade moves forward, it slides over cam surfaces 40, 38 on the guide tongue 38, which is accordingly depressed until the blade has nearly left the slot 56, when it springs back into position. A lower cover 28 has end tabs 64, 66, &c. engaged over the body 26 and cover 27 to hold the parts together, and forms a compartment 71 into which used blades can be passed through a transverse slot 62. A corner recess 65 in the lower cover 28 can be engaged with the centre bar of a safety razor which is to receive the dispensed blades. Reference has been directed by the Comptroller to Specification 949,746.
Patent GB-1054224-A (GB)
IPC: F16D55/224
Abstract: 1,054,224. Spot type disc-brakes. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM. GES.]. Feb. 5, 1965 [Feb. 5, 1964 (2); Feb. 14, 1964; Feb. 20, 1964 (3)], No. 5117/65. Heading F2E. A spot-type disc brake comprises a brake carrier, a caliper 2 extending around the edge of the brake disc, an hydraulic actuating cylinder 19 provided with an adjusting device and mounted in a bore in the caliper and an axially expandible hand operated device 18 interposed between the brake cylinder and a directly applied pad, the caliper 2 being mounted, with the interposition of a resilient bush for axial movement on a cylindrical sleeve 24 secured to the brake carrier, a second adjusting device 6 which also acts as a centring device being provided between the guide sleeve and the actuating cylinder 19. The device 18 includes a ball 39 and a recessed plate 38 rotatable by a cable to provide hand brake actuation. The cylindrical sleeve 24 has a flange pivoted at one extremity to the carrier and secured at the other by a split pin 29 (Fig. 2, not shown). Removal of the pin permits rotation of the sleeve about the pivot to permit access to the pads. The cylinder 19 carries a screwed pin 48 rotatable by a cam and pawl device 5 to take up clearance when the movement of piston 17 becomes excessive. The device 6 comprises a corrugated spring in an external groove on the cylinder 19 and yieldingly engages the inside of sleeve 24, slipping when the clearances become excessive. The caliper is provided with cavities 105 (Fig. 4, not shown) which may be partly or completely filled with oscillation damping means sealed off from the atmosphere by plugs. A wire spring may be provided to urge the pads apart.
Patent GB-1225540-A (GB)
IPC: H02K15/06
Filed: 1968-10-21
Abstract: 1,225,540. Electromagnetic coil shaping. SIEMENS AG. 21 Oct., 1968 [21 Oct., 1967], No. 49928/68. Heading B3A. A method of shaping end turns of dynamoelectric machine stator windings comprises providing an electrically conductive shaping member electrically insulated from, and situated adjacent the end turns, and causing a current pulse to pass through the end turns to provide electro-dynamic forces between the end turns and the shaping member causing movement and deformation of the end turns. Stator end turns 12 are engaged by shaping members 13 and are connected to a bank of condensers 14 and an ignitron 15. When the ignitron is fired the condenser bank discharges and a current pulse flows through the windings. The current pulse produces in the end turns a magnetic field which repels them from the members 13 and bends them over towards the stator laminations. A number of current pulses are generally required and the members 13 are moved into contact with the end turns between each pulse. The members 13 are of copper and are of frusto-conical shape for pressing back the end turns, or they may have an intermediate cylindrical portion (31) fitted with additional shaping members (33) for spreading out the end turns, Fig. 3 (not shown).
Patent GB-1228364-A (GB)
IPC: C08G73/10
Filed: 1967-05-09
Abstract: 1,228,364. Polyimides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 April, 1968 [9 May, 1967], No. 21437/67. Addition to 1,192,001. Heading C3R. The invention of Specification 1,192,001, which relates to polyimides of aminoanhydrides of the formula wherein R is a trivalent organic radical in which both the amine and anhydride groups are attached to aromatic nuclei, is modified in that an N-acylated derivative of the aminoanhydride is used as starting material. Specified derivatives are N-acetyl and N-formyl. Reference has been directed by the Comptroller to Specification 1,109,079.
Patent GB-1239088-A (GB)
IPC: B01J6/00
Filed: 1969-03-04
Abstract: 1,239,088. Purification of organic peroxides. CHEFARO MAATSCHAPPIJ N.V. 4 March, 1969 [4 March, 1968], No. 11380/69. Heading C2C. Organic peroxides which are solid at room temperature and fusible at temperatures below 120‹ C. are purified by heating an aqueous suspension of the impure organic peroxide to form an aqueous emulsion of the melt which is separated, using a centrifugal separator, into an aqueous phase and a liquid peroxide phase and the separated peroxide phase is cooled to solidify it, wherein the heating is performed by injecting finely divided (live) steam into the suspension during its transport to the centrifugal separator. The aqueous suspension is preferably prepared in vessel 2 by agitation with stirrer 1 and, using pump 3, is passed along a conduit 4 into which steam 6 is added through injector 5 and the suspension/emulsion is passed through a heatexchange spiral 7, through conduit 10 into separator 11 and the separated liquid peroxide is cooled on belt 12. In the example lauroyl peroxide is purified.
Patent GB-1251082-A (GB)
IPC: C07D209/38
Filed: 1968-09-12
Abstract: 1,251,082. Aromatic diaminodicarboxylic acids; condensed pyrrole derivatives. TORAY INDUSTRIES Inc. 12 Sept., 1968 [13 Sept., 1967; 18 Oct., 1967; 24 Oct., 1967], No. 43531/68. Heading C2C. Aromatic diaminodicarboxylic acids of formula in which (A) is a tetravalent aromatic radical of 6-19 carbon atoms, containing one or two benzene rings which may be condensed (naphthalene) or linked together, e.g. by -O-, -CH 2 -, -S-, -CO- or -CONH-, or by a direct bond; and when (A) contains two benzene rings, the linkages (1) and (2) are directly attached to the adjacent carbon atoms in one of the benzene rings in (A), and the linkages (3) and (4) are directly attached to the adjacent carbon atoms in the other benzene ring of (A); whereas, when (A) contains one benzene ring, the linkages (1) and (3) are disposed in the meta-position to each other, are prepared by reacting the aromatic diamine of Formula (II) in which (A<SP>1</SP>) is a divalent aromatic radical of 6-19 carbon atoms, containing one or two benzene rings as in A; and when (A<SP>1</SP>) contains two benzene rings, the two amino radicals are each linked with different rings; whereas, when (A<SP>1</SP>) contains one benzene ring, the two amino radicals are in the meta-position to one another, with chloral hydrate and hydroxylamine to give an oxime of formula cyclising this with conc. H 2 50 4  to give a condensed pyrrole derivative of formula and oxidizing this with H 2 0 2 . A and A<SP>1</SP> may contain further substituents. Several compounds of Formula IV and their oxime precursors are isolated.
Patent GB-1251552-A (GB)
IPC: G01B3/10
Filed: 1969-02-03
Abstract: 1,251,552. Tape measures. QUENOT & CIE S.A.R.L. Feb. 3, 1969 [March 8, 1968], No. 5778/69. Heading G1M. A flexible measuring tape 12 is guided by rollers or pins 16, 17, 19 from a drum 13 mounted in a casing portion 14 through a passage 18 in a handle 15. A window 20 and marker 21 may be provided. In Fig. 1 (not shown) the passage in the handle is flared at its ends and curved to ease the entry of the tape.
Patent GB-1259088-A (GB)
IPC: A01D34/73
Filed: 1970-02-20
Abstract: 1,259,088. Mower blade. WOLF-GERATE G.m.b.H. 20 Feb., 1970 [24 Feb., 1969; 11 Feb., 1970], No. 8333/70. Heading AIF. A rotary scythe mower blade comprised of plastics material comprises an equilaterally triangular shaped blade having undulating surfaces comprising concave outward or convex outward rasps on the edges. The blade, which may be injection moulded out of polyurethane is attached at one side to a rotary knife beam 12. In another embodiment the blade 2 comprises an oblique cutting leading surface 3, and a trailing surface being upwardly turned at 4 to act as a fan, and having tangential grooves 5 to enhance vertical flexibility. The upwardly turned portion 4 may be cut off along line X if fan facility is not required.
Patent GB-1265792-A (GB)
IPC: F24H1/38
Filed: 1968-03-15
Abstract: 1,265,792. Water heaters. RADIATION Ltd. 14 March, 1969 [15 March, 1968], No. 12774/68. Heading F4A. A combustion chamber for a water heater comprises two body parts each of which is of cast metal and provides a wall of the combustion chamber, and at least one of which has embedded in it at least one water pipe and includes a plurality of heat-transferring fins. The instantaneous water heater shown in Figs. 7 and 8 comprises two identical aluminium castings 39 each of which is cast around a copper water pipe 38, Fig. 9, of serpentine shape. The two castings are fastened together with screws 57 to form a combustion chamber having fins 14 on its inside wall and the pipes 38 embedded in its outside wall. A further casting 37, see also Fig. 12, attached to the castings 39 has a serpentine pipe 50 embedded in it, with fins 51 cast around the straight portions 52 of the pipe. Semicircular bends 53 of the pipe and the two ends 54 of the pipe project slightly beyond the casting 37. The two ends 54 of the pipe 50 are connected to the upper ends of the pipes 38 by a pair of unions 59. The projecting lower ends 40 of the pipes 38 are connected to the cold water inlet pipe and the hot water outlet pipe through a water flow control section (not shown) which, together with a gas burner assembly, is mounted beneath the combustion chamber. In other embodiments, for circulatory water heating or for central heating, the top casting is omitted, and the pipes may be embedded in the inside walls of the two remaining castings or may comprise two horizontal header pipes connected by a number of vertical pipes. The fins may be strips of aluminium sheet, the edges of the strips being fixed to the respective casting when the latter is cast.
Patent GB-1266510-A (GB)
IPC: A47L15/42
Filed: 1969-03-26
Abstract: 1,266,510. Axial-flow pumps. SIEMENS A.G. March 26, 1969 [March 26, 1968; March 30, 1968], No. 15928/69. Heading F1C. In a self-priming axial-flow pump, e. g. for a dishwashing machine, having an impeller 3 mounted within an annular impeller chamber provided externally with a separating chamber 9 communicating with the impeller chamber through two ports 11, 12, air drawn into the pump through inlet 5 is mixed with liquid therein and the mixture is delivered through port 12 into the separating chamber from where the separated liquid is returned to the suction side 4 of the impeller chamber via port 11. The clearance gap at the impeller periphery provides the necessary flowpath for the return of the separated liquid to the suction side 4. The separating chamber has a wedge-shaped rib 13 therein which deflects the liquid in the mixture away from outlet 10, thereby enabling some of the air to flow through the outlet. Further air is separated from the mixture when the latter impinges on the liquid at the bottom of chamber 9.
Patent GB-1288662-A (GB)
IPC: C08K5/3445
Filed: 1970-06-22
Abstract: 1288662 Stabilizing polymers SANKYO CO Ltd 22 June 1970 [20 June 1969] 30276/70 Headings C3P and C3R [Also in Division C2] Polymers of olefins, conjugated diolefins, styrene, vinyl chloride or vinylidene chloride, polyamides and polyurethanes are stabilized with at least one compound of formula in which R 1  and R 2  are C 1-6  alkyl or form together with the C atom to which they are attached a saturated C 5  or C 6  alicyclic group or a group of formula wherein R 3  and R 4  are C 1-6  alkyl, or a salt thereof, e.g. a phosphate, citrate, stearate or benzoate. Specified polymers are polyethylene, polypropylene, polystyrene, polybutadiene,polyisoprene, polyvinyl chloride, polyvinylidene chloride, and ethylene/propylene, ethylene/butene, ethylene/ vinyl acetate, butadiene/styrene, acrylonitrile/ butadiene/styrene, vinyl chloride/vinylidene chloride, vinyl chloride/vinyl acetate and vinylidene chloride/vinyl acetate copolymers. Many suitable piperidine-4-spirohydantoin derivatives are specified and examples describe the stabilizing of (3) polyvinyl chloride containing dibasic lead phosphite and lead, barium and cadmium stearates, (4) polypropylene, (5) nylon-6 and (6) polyurethane derived from polycaprolactone with 1,3,8-triaza-7,7,99-tetramethyl-2,4-dioxospiro[4.5]decane, cyclohexane-1-spiro-2<SP>1</SP>-(6<SP>1</SP>,6<SP>1</SP>- dimethylpiperidine)- 4<SP>1</SP>- spiro - 5<SP>11</SP> - hydantoin and (2,2,6,6-tetramethylpiperidine)-4-spiro-2<SP>1</SP>- (6<SP>1</SP>,6<SP>1</SP> - dimethylpiperidine) - 41 - spiro - 5<SP>11</SP> - hydantoin; and (6) the above polyurethane with 1,3,8 - triaza - 7,9,9 - trimethyl - 7 - n - hexyl- 2,4-dioxo-spiro[4.5]decane, 1,3,8-triaza-7,7-diisobutyl - 9,9 - dimethyl - 2,4 - dioxo spiro[4. 5]- decane and cyclopentane-1-spiro-2<SP>1</SP>-(6<SP>1</SP>,6<SP>1</SP>-dimethylpiperidine)-4<SP>1</SP>-spiro-5<SP>11</SP>-hydantoin.
Patent GB-1289863-A (GB)
IPC: B29C48/12
Filed: 1969-10-13
Abstract: 1289863 Extruding foamed plastics ASAHI KASEI KOGYO KK 13 Oct 1969 [21 Oct 1968] 50140/69 Heading B5A Extruded foamed thermoplastic articles having longitudinally extending portions of differing density, i.e. portions which are non- foamed or where relatively little foaming has taken place, are made using an extrusion die having two or more material-flow passages, at least one of which allows a degree of expansion of resin therein different to that for resin in another passage. The denser portions are formed by applying a relatively greater pressure and/or a relatively lower temperature and additionally the material forming the portions may be degassed, e.g. by using a die having passage(s) of sintered metal. In the embodiment of Fig. 1, pressure differences in passages 4, 5 are obtained by the provision of upstream conduits 7, 8 of different diameters. In a second embodiment, Fig. 2 (not shown), conduits 8 are at the downstream end of the die and further embodiments, Figs. 3-7 (not shown), describe the formation of annular, U-cross section and plate-like relatively unfoamed portions. Cooling of the die is preferably adjacent or towards its downstream end and the die may be associated with a cooled sizing die. Thermoplastic polymers specifically mentioned are, polyethylene, polypropylene, polystyrene, P.V.C. copolymers and A.B.S. copolymers.
Patent GB-1290412-A (GB)
IPC: C22C38/22
Filed: 1970-08-13
Abstract: 1290412 Alloy steel NIPPON KOKAN KK 13 Aug 1970 [27 Aug 1969] 39010/70 Heading C7A A steel consists in percent by weight of C present but less than 0À1 Si present but less than 1À0 Mn 0À3 - 1À2 Cr 7 - 10 Mo 0À3 - 1À5 V 0À1 - 0À3 Nb 0À15 - 0À5 B 0 - 0À012 N 0 - 0À050 the balance apart from impurities being Fe. The alloy may be heat-treated at 1150C. for 30 minutes and then tempered at 800C. after air cooling. The alloy may be used for boilers, petroleum and chemical process plant, heat exchangers for atomic furnaces and pipe lines.
Patent GB-1295058-A (GB)
IPC: B41M5/52
Filed: 1969-09-12
Abstract: 1295058 Impression - conforming material PRECISION DYNAMICS CORP 12 Sept 1969 [2 Sept 1969] 14450/72 Divided out of 1295057 Heading D2B A film of impression conforming material 0.0001-0.001 inches thick, for use in the fingerprinting device of Specification 1,295,057 is obtained by depositing a coating of a resinous elastomer, e.g. polyurethane, diatomaceous earth and liquid carrier (e.g. THF and acetone) on a web, drying the coating, applying a coating of wet ink to the film and removing the film from the web.
Patent GB-1296503-A (GB)
IPC: C07C45/00
Filed: 1971-05-05
Abstract: 1296503 Telomerization process for ketones CELANESE CORP 5 May 1971 [8 May 1970] 13156/71 Heading C2C An aliphatic or cycloaliphatic ketone containing product is prepared by introducing an olefinic hydrocarbon and an aldehyde into a liquid consisting predominantly of the aldehyde and/or the hydrocarbon, and simultaneously introducing molecular oxygen into the liquid at a rate sufficient to initiate telomerization but below that at which there are formed more than 2 mols. of the carboxylic acid corresponding to the aldehyde per mole of total ketone. In examples, acetaldehyde and ethylene are reacted to give methyl ethyl ketone with some 2- hexanone and 2-octanone, and acetaldehyde and cyclohexene are reacted to give methyl cyclo hexyl ketone. Acetic acid is a by-product. Reference is also made to the product of methyl isobutyl ketone and homologues from acetaldehyde and isobutene.